Torque converter
Convert torque between N·m, kgf·m and pound-force feet.
Fill in the fields and the result will appear here automatically.
Converts torque between newton metres, kilonewton metres, newton centimetres, kilogram-force metres, pound-force feet, pound-force inches and ounce-force inches.
How it works
Formula and logic
Every unit converts through the newton metre using exact force and length factors.
Example
A tightening torque of 100 N·m is about 73.76 pound-force feet.
Fields and units
- Torque — in the selected source unit
- From unit — list option
- To unit — list option
How to use
- — Enter the value.
- — Pick the source unit.
- — Pick the target unit.
Method and limitations
- Calculation method
- Formula and logic
- Data or methodology source
- NIST: conversion-factor tables, Appendix B.9 NIST: international and historical US survey foot
- Limitation
- The result is a rounded unit conversion. Check the entered value and selected units.
FAQ
How is torque different from force?
Torque is force times lever arm, so its unit is compound: a newton multiplied by a metre.
Is the pound-force foot conversion exact?
The factor follows from the international pound, international foot and standard g₀: 1 lbf·ft ≈ 1.3558179483314 N·m. The definitions are exact, but this decimal and the displayed result are rounded.
What is an ounce-force inch?
A small US unit for precision mechanics: one sixteenth of a pound-force inch.
Can torque be converted to energy?
No. A newton metre of torque and a joule of energy share dimensions but are different quantities.